Fizeau Interferometry Without Back Reflections

You have always thought there must be a better way, and there is. SCI based interferometers align with laser ease and isolate like a broadband light source; electronically switching between the two modes at camera frame rates. SCI enables you to selectively see the surface of interest.

FAST, ISOLATED AND EASY TO ALIGN.

“SCI from Äpre Instruments is a breakthrough technology that allows Sydor Optics to measure substrates more efficiently than with conventional interferometry. SCI enables the accurate measurement of flat and ultra-parallel surfaces without the interference of background fringes that are common for standard interferometric systems”

Zach H, Sydor Optics

Spectrally Controlled Interferometry — Wins Prestigious Award

ÄPRE’s Spectrally Controlled Interferometry was awarded one of Laser Focus World’s highest awards
for innovation in photonics, a Gold-Level Honoree. We are proud to be recognized by this leading industry journal for the innovation that SCI brings to optical testing.

PERFECTfor plane parallel surfaces

With confused fringes you are lost. Optics with plane parallel surfaces are often overwhelmed by multiple fringes from multiple surfaces using laser based interferometers.

SCI easily isolates the surface of interest showing you only what is measured.

FAST, LASER LIKE ALIGNMENT

You don’t have time to hunt for fringes. Getting the part aligned, measured and out the door is key to efficient manufacture.

SCI alignment is easy with laser like interference enabling high contrast fringes that are easy to find and align.

ISOLATES SURFACES to 50 µm THIN!

Isolating fringes on your surface is easy with SCI. You move the fringes to your surface and simply measure. There is almost no limitation to how thin your part can be. Plus there is no long wait while a laser scans and software hopefully pulls out your surface.

SCI: Fast, confident surface isolation

PHASE MEASURE THE THINNEST PARTS

Total Thickness Variation on 50 µm thin parts? No problem! And in one measurement for increased accuracy and speed.